Why does Excel struggle so much with mixed data in the same column?

I keep running into this with exported files. Same column, but you’ll have: numbers,text, currency,symbols... sometimes even blanks or notes Visually it looks fine, but the moment you try to sort, filter, or calculate… everything breaks. It feels like excel expects everything to be perfectly clean before you even start working. I kind of wish there was a simple way to normalize this automatically without having to fix it manually every time..